diff options
| author | Kemeng Shi <shikemeng@huaweicloud.com> | 2025-05-22 20:25:53 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-15 12:17:07 +0200 |
| commit | 9b01ada580ee84fb319e7ecb5fb5b1f54a9eb799 (patch) | |
| tree | 0212eb8f97118a5883ac5e27364faa63c954f85e /scripts/generate_rust_analyzer.py | |
| parent | e679b2681efbafce564260f4a7cdb1d0595f424a (diff) | |
mm: swap: fix potential buffer overflow in setup_clusters()
commit 152c1339dc13ad46f1b136e8693de15980750835 upstream.
In setup_swap_map(), we only ensure badpages are in range (0, last_page].
As maxpages might be < last_page, setup_clusters() will encounter a buffer
overflow when a badpage is >= maxpages.
Only call inc_cluster_info_page() for badpage which is < maxpages to fix
the issue.
Link: https://lkml.kernel.org/r/20250522122554.12209-4-shikemeng@huaweicloud.com
Fixes: b843786b0bd0 ("mm: swapfile: fix SSD detection with swapfile on btrfs")
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Baoquan He <bhe@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kairui Song <kasong@tencent.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions